(Android™) Set Entry Filepath (in output Zip) when Zipping

Demonstrates how to set the path for the file entry within the .zip to something different than the path in the filesystem.

Chilkat Android™ Downloads Android™ Java Libraries Android C/C++ Libraries

// Important: Don't forget to include the call to System.loadLibrary
// as shown at the bottom of this code sample.
package com.test;

import android.app.Activity;
import com.chilkatsoft.*;

import android.widget.TextView;
import android.os.Bundle;

public class SimpleActivity extends Activity {

  private static final String TAG = "Chilkat";

  // Called when the activity is first created.
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    // This requires the Chilkat Zip API to have been previously unlocked.
    // See Unlock Chilkat Zip for sample code.

    CkZip zip = new CkZip();

    boolean success = zip.NewZip("qa_output/zipA.zip");

    // When an absolute filepath is passed to AppendOneFileOrDir, the path within the .zip
    // will be one of two values:  (1) just the filename part if saveExtraPath is false,
    // or (2) the full absolute path, but made relative, if saveExtraPath is true.
    // (For example, "c:/ck2000/appData/UnitTest/qa_data/hamlet.xml" made relative is 
    // "ck2000/appData/UnitTest/qa_data/hamlet.xml")
    boolean saveExtraPath = false;
    success = zip.AppendOneFileOrDir("c:/ck2000/appData/UnitTest/qa_data/hamlet.xml",saveExtraPath);
    if (success != true) {
        Log.i(TAG, zip.lastErrorText());
        return;
        }

    // When a relative path is passed to AppendOneFileOrDir, then saveExtraPath does not apply.
    // For example, assume our current working directory is "c:/ck2000/appData/UnitTest".  The following
    // call to AppendOneFileOrDir creates an entry with the filepath "qa_data/hamlet.xml".
    success = zip.AppendOneFileOrDir("qa_data/hamlet.xml",saveExtraPath);
    if (success != true) {
        Log.i(TAG, zip.lastErrorText());
        return;
        }

    // Examine the entries
    int numEntries = zip.get_NumEntries();
    int i = 0;
    while (i < numEntries) {
        CkZipEntry e = zip.GetEntryByIndex(i);
        Log.i(TAG, String.valueOf(i) + ": " + e.fileName());

        i = i + 1;
        }

    // The output so far is:

    // 	0: hamlet.xml
    // 	1: qa_data/hamlet.xml

    // If we write the .zip as-is, then the zip will have two entries
    // with the filepaths as shown above.

    // This writes "qa_output/zipA.zip"
    success = zip.WriteZip();

    // Now change the entry filepaths to whatever is desired.
    CkZipEntry entry = zip.GetEntryByName("hamlet.xml");
    if (zip.get_LastMethodSuccess() == false) {
        Log.i(TAG, "entry not found");
        return;
        }

    entry.put_FileName("Shakespeare/Claudius1.xml");

    entry = zip.GetEntryByName("qa_data/hamlet.xml");
    if (zip.get_LastMethodSuccess() == false) {
        Log.i(TAG, "entry not found");
        return;
        }

    entry.put_FileName("Shakespeare/Claudius2.xml");

    // Change the name of the .zip to be written and write again:
    zip.put_FileName("qa_output/zipB.zip");
    success = zip.WriteZipAndClose();
    if (success != true) {
        Log.i(TAG, zip.lastErrorText());
        }
    else {
        Log.i(TAG, "Zip created!");
        }

    // Examine both zipA.zip and zipB.zip using 7zip (or another tool) to see the differences.

  }

  static {
      System.loadLibrary("chilkat");

      // Note: If the incorrect library name is passed to System.loadLibrary,
      // then you will see the following error message at application startup:
      //"The application <your-application-name> has stopped unexpectedly. Please try again."
  }
}